Perceptual Thresholds for Shock-type Excitation of the Front Wheel of a Road Bicycle at the Cyclist's Hands
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Bibliographic record
Abstract
Dynamic comfort when riding a road bicycle is closely linked to road vibration transmitted to the cyclist. The perception of vibration transmitted to the cyclist while riding has recently garnered increased research attention. In this study, we present a laboratory set-up to simulate road cycling on a treadmill and use it to assess cyclist's sensitivity to shock-type excitation. We report a perceptual experiment to estimate the perceptual threshold in terms of the absorbed energy at the cyclist's hands when presented with two closely spaced impacts at the front wheel. Ten cyclists took part in a two-alternative forced choice (2-AFC) discrimination task. The results indicate that they were able to discriminate energy differences in the order of 100 mJ.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it